CN113494809B - Refrigerator with a door - Google Patents

Refrigerator with a door Download PDF

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Publication number
CN113494809B
CN113494809B CN202010250452.0A CN202010250452A CN113494809B CN 113494809 B CN113494809 B CN 113494809B CN 202010250452 A CN202010250452 A CN 202010250452A CN 113494809 B CN113494809 B CN 113494809B
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China
Prior art keywords
duct
air
refrigerating
temperature
chamber
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CN202010250452.0A
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Chinese (zh)
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CN113494809A (en
Inventor
韩丽丽
张守杰
张月
杨大海
张升刚
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Hisense Refrigerator Co Ltd
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Hisense Refrigerator Co Ltd
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Priority to CN202010250452.0A priority Critical patent/CN113494809B/en
Publication of CN113494809A publication Critical patent/CN113494809A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • F25D25/025—Drawers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/16—Convertible refrigerators

Abstract

The invention provides a refrigerator, which comprises a freezing chamber, a refrigerating chamber and a fan mounting plate, wherein the freezing chamber is provided with a refrigerating chamber; the fan mounting plate is provided with a fan accommodating cavity communicated with the freezing chamber; the rear side of the fan mounting plate is provided with a suction air channel communicated with the fan accommodating cavity and the freezing chamber, and the suction air channel is communicated with the refrigerating chamber through a refrigerating return air channel; the rear wall of the refrigerating liner is provided with an air duct cover plate which defines a main air supply duct communicated with the refrigerating chamber and the refrigerating air supply duct together with the rear wall of the refrigerating liner; the rear end of the variable temperature drawer and the air duct cover plate jointly define a rear return air duct communicated with the refrigerating chamber; the back return air duct is communicated with the refrigeration return air duct; a bottom return air duct communicated with the refrigerated return air duct and the temperature-changing drawer is arranged below the temperature-changing drawer, and a top air supply duct communicated with the temperature-changing storage chamber and the main air supply duct is arranged at the top of the temperature-changing drawer; the invention enables the airflow in the storage room to flow out from the rear side of the temperature-changing drawer and the airflow in the temperature-changing drawer to flow out through the bottom air return duct, thereby improving the accuracy of temperature control and the cooling efficiency.

Description

Refrigerator
Technical Field
The invention belongs to the technical field of refrigerators, and particularly relates to a refrigerator.
Background
Refrigerators occupy an important share of the market as indispensable electric appliances in home life. With the increase of the quality requirements of consumers for fresh food, the requirements for refrigerators are also higher and higher, and the refrigerators are required to have higher configuration and stronger functions. The existing refrigerator generally comprises a freezing chamber and a refrigerating chamber, the shelf life of food placed in the refrigerating chamber is short, the food placed in the freezing chamber can be kept fresh for a longer time, but the food needs to be thawed, the thawing needs a certain time, and in addition, the thawing can bring nutrition loss. The temperature-changing chamber can be divided into an independent temperature-changing chamber and a temperature-changing drawer in a refrigerating chamber. The independent wide temperature-changing chamber can realize the conversion between the refrigerating chamber and the freezing chamber, but the temperature control precision is lower due to the limitation of the air outlet mode. For widely-publicized variable temperature drawers with the temperature of 3-3 ℃ in the refrigerating chamber controlled accurately, the accurate temperature control cannot be really realized due to the influence of the return air temperature of the refrigerating chamber.
At present, the functions of the refrigerator are improved from single food storage to moisture preservation, fresh preservation, storage at a specified temperature and the like. The temperature of the drawer is also changed when the temperature of the refrigerating chamber or the freezing chamber is adjusted, and the temperature of the drawer cannot be adjusted and set independently;
in addition, the existing low-temperature air flows through the storage chamber to refrigerate the low-temperature air and then flows out from the bottom of the storage chamber, and the air absorbs the heat of the storage chamber and has higher temperature than the upper-layer air, so the temperature of the upper-layer low-temperature air is easy to rise, and the temperature of the upper-layer low-temperature air rises to cause temperature fluctuation.
The invention is provided in view of the above.
Disclosure of Invention
The invention provides a refrigerator aiming at the technical problems.
In order to achieve the purpose, the invention adopts the technical scheme that:
a refrigerator, comprising:
a freezing chamber surrounded by a freezing inner container;
a fan mounting plate fixedly connected to a rear wall of the freezing inner container; the fan mounting plate is provided with a fan accommodating cavity which is used for accommodating a fan and is communicated with the freezing chamber; the fan mounting plate and the rear wall of the freezing inner container jointly define a suction air channel, and the fan accommodating cavity, the freezing chamber and the suction air channel are sequentially connected end to end and are communicated with each other; an evaporator is arranged in the suction air duct;
the refrigerating chamber is surrounded by the refrigerating liner;
the air duct cover plate is overlapped with the rear wall of the refrigerating inner container; the air duct cover plate and the rear wall of the refrigerating liner jointly define a main air supply duct communicated with the refrigerating chamber;
the cold storage air supply duct is communicated with the fan accommodating cavity and the main air supply duct;
the refrigerating return air duct is communicated with the refrigerating chamber and the suction air duct;
a variable temperature drawer installed in the refrigerating chamber and having a variable temperature storage chamber formed therein; the rear end part of the variable temperature drawer and the air duct cover plate jointly define a rear return air duct communicated with the refrigerating chamber and the refrigerating return air duct;
the top of the variable temperature drawer is provided with a top air supply duct which is communicated with the main air supply duct and the variable temperature storage chamber;
the bottom of the variable temperature drawer and the bottom wall of the refrigerating liner jointly define a bottom return air duct which is communicated with the variable temperature storage chamber and the refrigerating return air duct;
on one hand, the fan can enable air to sequentially pass through the fan accommodating cavity, the refrigerating air supply duct, the main air supply duct, the refrigerating chamber, the back air return duct, the refrigerating air return duct, the suction duct and the evaporator positioned in the suction duct and then return to the fan accommodating cavity; on the other hand, the air can sequentially pass through the fan accommodating cavity, the refrigerating air supply duct, the main air supply duct, the top air supply duct, the variable temperature storage chamber, the bottom air return duct, the refrigerating air return duct, the suction duct and the evaporator positioned in the suction duct and then return to the fan accommodating cavity.
Preferably, a fan shell is arranged on the front side of the fan mounting plate, and the fan shell and the fan mounting plate are matched to define the fan accommodating cavity.
Preferably, the fan shell is provided with a freezing air inlet which is communicated with the freezing chamber and the fan accommodating chamber;
the fan mounting plate is provided with a suction inlet which is communicated with the suction air channel and the fan accommodating cavity;
the lower end of the fan mounting plate and the rear wall of the freezing inner container jointly define a freezing air outlet which is communicated with the freezing chamber and the suction air channel.
Preferably, the end part of the air duct cover plate close to the two opposite side walls of the refrigerating liner is provided with a main air supply outlet which is communicated with the main air supply air duct and the refrigerating chamber.
Preferably, the temperature-changing drawer comprises a shell fixed in the refrigerating chamber and a door body connected to the shell and capable of being pushed into or pulled out of the refrigerating chamber;
the shell comprises a shell bottom plate positioned at the bottom of the shell and a lower top cover plate arranged opposite to the shell bottom plate; a first shell side plate, a shell back plate and a second shell side plate which are sequentially connected are arranged at the position surrounding the edge of the shell bottom plate; wherein the shell back plate is positioned at the rear side of the shell;
the air duct cover plate and the shell back plate of the shell jointly define the rear return air duct.
Preferably, the main air supply duct and the top air supply duct are communicated with each other through a temperature-variable drawer connecting duct.
Preferably, an upper top cover plate is arranged on the upper side of the lower top cover plate, a top foam piece attached to the lower top cover plate is arranged between the lower top cover plate and the upper top cover plate, and a top air supply duct communicated with the variable-temperature storage chamber is defined by the upper top cover plate and the top foam piece together.
Preferably, the rear side of the door body is connected with a tray-shaped article container for placing articles; one end of the storage container, which is close to the shell back plate of the shell, is provided with a notch.
Preferably, the refrigerated return air duct comprises a main refrigerated return air duct communicated with the suction air duct and at least one sub refrigerated return air duct, and the sub refrigerated return air ducts are communicated with the main refrigerated return air duct.
Preferably, the refrigerator includes a temperature-changing chamber between the refrigerating chamber and the freezing chamber; the refrigerator is provided with a variable-temperature air supply duct and a variable-temperature air return duct; the variable-temperature air supply duct is communicated with the fan accommodating cavity and the variable-temperature chamber; the variable-temperature return air duct is communicated with the variable-temperature chamber and the suction air duct.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides a refrigerator, which comprises a freezing chamber, a refrigerating chamber and a fan mounting plate, wherein the freezing chamber is provided with a refrigerating chamber; the fan mounting plate is provided with a fan accommodating cavity communicated with the freezing chamber; the rear side of the fan mounting plate is provided with a suction air channel communicated with the fan accommodating cavity and the freezing chamber, and the suction air channel is communicated with the refrigerating chamber through a refrigerating return air channel; the rear wall of the refrigerating liner is provided with an air duct cover plate which defines a main air supply duct communicated with the refrigerating chamber and the refrigerating air supply duct together with the rear wall of the refrigerating liner; the rear end of the variable temperature drawer and the air duct cover plate jointly define a rear return air duct communicated with the refrigerating chamber; the back return air duct is communicated with the refrigeration return air duct; a bottom return air duct communicated with the refrigerated return air duct and the temperature-changing drawer is arranged below the temperature-changing drawer; the top of the variable temperature drawer is provided with a top air supply duct communicated with the variable temperature storage chamber and the main air supply duct; the rear return air duct is defined at the rear side of the temperature change drawer, so that air flow in the storage room flows out from the rear side of the temperature change drawer, the temperature reduction effect and the temperature fluctuation of the temperature change drawer caused by the rise of hot air passing through the refrigerating chamber are effectively avoided, and the accuracy and the temperature reduction efficiency of the temperature control of the temperature change drawer are improved; meanwhile, the temperature change drawer is arranged in the storage room, the bottom air return duct is defined by the temperature change drawer and the bottom wall of the storage room, and hot air passing through the temperature change drawer flows out through the bottom air return duct, so that the difference between the internal temperature of the existing refrigerator and the temperature of the drawer device can be realized, and the purposes of storing and keeping freshness of different kinds of food can be achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of a refrigerator according to the present invention;
FIG. 2 is a schematic view of a portion of the refrigerator according to the present invention;
FIG. 3 is an exploded view of the related structure of the freezing compartment of the refrigerator according to the present invention;
FIG. 4 is a rear view of the inner structure of the refrigerator of the present invention;
FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;
fig. 7 is a rear view of a related structure of a freezing chamber of the refrigerator of the present invention;
FIG. 8 is a cross-sectional view taken along D-D of FIG. 7;
FIG. 9 is a rear view of the fresh food compartment of the refrigerator of the present invention;
FIG. 10 is a cross-sectional view taken along the line C-C of FIG. 9;
FIG. 11 is a cross-sectional view taken along direction E-E of FIG. 9;
FIG. 12 is an exploded view of the temperature-changing drawer and duct assembly of the refrigerator of the present invention;
FIG. 13 is a schematic view of another exploded structure of the temperature change drawer and the air duct assembly of the refrigerator according to the present invention;
FIG. 14 is a schematic view of another exploded structure of the temperature change drawer and the air duct assembly of the refrigerator according to the present invention;
FIG. 15 is a schematic view of another exploded structure of the temperature change drawer and the air duct assembly of the refrigerator according to the present invention;
fig. 16 is another arrangement diagram of the air duct of the refrigerator according to the present invention.
In the above figures:
a refrigerator 10; a case 11; a refrigerating chamber 4; a rear wall 41 a; a bottom wall 41 b; a freezing chamber 5; a temperature-changing chamber 6; a refrigerating inner container 41; a freezing inner container 51; a temperature-changing inner container 61; a variable temperature drawer 13; the freezing air inlet 51 a; a freezing air outlet 51 b; a fan mounting plate 52; a variable temperature air supply duct 62; a variable temperature return air duct 63; a refrigerated air supply duct 42; a refrigerated return air duct 43; a separate refrigeration return air duct 44; a main refrigerated return air duct 45; a housing 8; a case bottom plate 8 a; the first case side plate 8 b; a case back plate 8 c; a second case side plate 8 d; a temperature-changing storage chamber 14; a door body 9; a storage container 54; a bottom return air duct 81; a lower top cover plate 82; an upper ceiling plate 83; a top foam member 84; a top air supply duct 85; a fan 1; an air duct cover plate 2; a foam member 3; a main air supply duct 31; a main air supply outlet 31 b; a suction port 21 a; a suction duct 22; a fan case 23; a fan housing chamber 24; the temperature changing chamber is connected with an air duct 15; an evaporator 17; and a rear return air duct 18.
Detailed Description
The present invention is further described below in conjunction with specific examples to enable those skilled in the art to better understand the present invention and to practice it, but the scope of the present invention as claimed is not limited to the scope described in the specific embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-16, a refrigerator 10, the refrigerator 10 includes a thermally insulated cabinet 11, the cabinet 11 including an outer casing, a cabinet liner, and a thermal insulation layer (not shown) therebetween. The cabinet 11 defines a plurality of insulated storage compartments to store food and the like. In the present embodiment, these storage compartments are a refrigerating compartment 4 located at the upper part, a freezing compartment 5 located at the bottom part, and a temperature-changing compartment 6 located at the middle part, respectively; the refrigerator liners defining the refrigerating compartment 4, the freezing compartment 5 and the temperature-changing compartment 6 are respectively referred to as a refrigerating liner 41, a freezing liner 51 and a temperature-changing liner 61. The storage compartments may be closed by respective corresponding doors, which may be coupled to the cabinet 11 to be laterally rotated. The refrigerating chamber 4 is provided with a refrigerating side-by-side door, and the freezing chamber 5 is provided with a freezing side-by-side door.
It should be understood that the present invention should not be limited to a particular distribution of the storage compartments of the refrigerator 10, and that the present invention may also be applied to other types of refrigerators 10, such as those having a drawer-type door, for example, 10.
The refrigerator 10 has an evaporative refrigeration system forming a closed loop configured to supply cold air to the storage compartment. The refrigeration system may generate cold air using latent heat of vaporization of a refrigerant through a cooling cycle; the refrigeration system includes at least a compressor (not shown), a condenser (not shown), a throttle device (not shown), and an evaporator 17. Since such a refrigeration system is well known in the art, further description thereof is omitted. In this embodiment, the refrigerator 10 has a single evaporative refrigeration system, and serves as a refrigeration system for the freezing chamber 5 and the refrigerating chamber 4, and supplies air to the refrigerating chamber 4, the freezing chamber 5, and the temperature-variable chamber 6 by a single air supply system. The single evaporative refrigeration system will now be described as refrigerating the cold storage compartment 4, the freezer compartment 5 and the temperature-changing compartment 6.
As shown in fig. 3-8, the above evaporative refrigeration system includes a fan 1; a fan mounting plate 52 fixedly connected with the rear wall of the freezing liner 51 is arranged in the freezing chamber 5, a fan shell 23 is arranged on the front side of the fan mounting plate 52, and the fan shell 23 and the fan mounting plate 52 are matched to define a fan accommodating cavity 24 for accommodating the fan 1; the fan case 23 is provided with a freezing air inlet 51a communicating the freezing chamber 5 and the fan accommodating chamber 24 to communicate the fan accommodating chamber 24 with the freezing chamber 5. The fan mounting plate 52 is provided with a suction opening 21a, that is, the side of the fan accommodating chamber 24 close to the rear wall of the freezing inner container 51 is provided with the suction opening 21 a. The fan mounting plate 52 and the rear wall of the freezing inner container 51 define a suction air channel 22, one end of the suction air channel 22 is communicated with the freezing chamber 5, and the other end is communicated with the fan accommodating cavity 24 through a suction port 21 a; an evaporator 17 is provided in the suction duct 22 to cool the air entering the suction duct 22 from the freezing chamber 5. In this embodiment, a gap is formed between the lower end of the fan mounting plate 52 and the rear wall of the freezing inner container 51 to define a freezing air outlet 51b communicating the freezing chamber 5 and the suction air duct 22.
As shown in fig. 5 and 8, when the fan 1 works, air is sent into the freezing chamber 5 from the fan accommodating chamber 24 through the freezing air inlet 51a, flows in the freezing chamber 5, enters the suction air duct 22 from the freezing chamber 5 through the freezing air outlet 51b, is cooled and cooled in the suction air duct 22 through the evaporator 17, and finally returns to the fan accommodating chamber 24 through the suction port 21a, and the above cycle is repeated to cool the freezing chamber 5.
As shown in fig. 4, the evaporative refrigeration system includes a variable temperature air supply duct 62 and a variable temperature air return duct 63; one end of the variable-temperature air supply duct 62 is communicated with the fan accommodating cavity 24 through a variable-temperature air supply outlet, and the other end is communicated with the variable-temperature chamber 6 through a variable-temperature air inlet; one end of the variable-temperature return air duct 63 is communicated with the variable-temperature chamber 6 through a variable-temperature air outlet, and the other end is communicated with the suction air duct 22 through a variable-temperature return air inlet. The variable temperature air supply outlet and the variable temperature air outlet are respectively arranged at two opposite angular positions of the rear wall of the variable temperature liner 61, and the variable temperature air supply outlet is positioned above the variable temperature air outlet.
When the fan 1 works, airflow enters the variable-temperature air supply duct 62 from the fan accommodating cavity 24 through the variable-temperature air supply outlet, and is sent into the variable-temperature chamber 6 through the variable-temperature air inlet, flows in the variable-temperature chamber 6, enters the variable-temperature air return duct 63 from the variable-temperature chamber 6 through the variable-temperature air outlet, finally enters the suction duct 22 through the variable-temperature air return inlet, is cooled by the evaporator 17 in the suction duct 22, finally returns to the fan accommodating cavity 24 through the suction inlet 21a, and the above circulation is repeated to realize the cooling of the variable-temperature chamber 6. That is, when the fan 1 works, the air flow in the fan accommodating chamber 24 passes through the variable temperature air supply duct 62, the variable temperature chamber 6, the variable temperature return air duct 63 and the suction duct 22 in sequence, and is cooled by the evaporator 17 in the suction duct 22 and then returns to the fan accommodating chamber 24, so as to form a cooling circulation system of the variable temperature chamber 6.
As shown in fig. 4, 5 and 10, the evaporative refrigeration system includes a refrigerated supply air duct 42 and a refrigerated return air duct 43; one end of the refrigerated air supply duct 42 is communicated with the fan accommodating cavity 24 through a refrigerated air supply outlet, and the other end is communicated with the refrigerating chamber 4 through a refrigerated air inlet; one end of the refrigerating return air duct 43 is communicated with the refrigerating chamber 4 through a refrigerating air outlet, and the other end is communicated with the suction air duct 22 through a refrigerating return air inlet.
When the fan 1 works, airflow enters the refrigerated air supply duct 42 from the fan accommodating cavity 24 through the refrigerated air supply outlet and is sent into the refrigerating chamber 4 through the refrigerated air inlet, flows in the refrigerating chamber 4, enters the refrigerated air return duct 43 from the refrigerating chamber 4 through the refrigerated air outlet, finally enters the suction duct 22 through the refrigerated air return inlet, is cooled by the evaporator 17 in the suction duct 22 and finally returns to the fan accommodating cavity 24 through the suction inlet 21a, and the circulation is repeated to realize the cooling of the temperature changing chamber 6. That is, when the fan 1 operates, the air flow in the fan accommodating chamber 24 passes through the refrigerating air supply duct 42, the refrigerating chamber 4, the refrigerating return air duct 43 and the suction air duct 22 in sequence, and is cooled by the evaporator 17 in the suction air duct 22 and then returns to the fan accommodating chamber 24, thereby forming a cooling circulation system of the refrigerating chamber 4.
A temperature-changing drawer 13 with a switchable temperature range is arranged in the refrigerating chamber 4 of the refrigerator 10. The temperature changing drawer 13 is located at the bottom of the refrigerating compartment 4 and is supported on the bottom wall 41b of the refrigerating compartment 4.
The temperature changing drawer 13 may be constructed separately from the case 11 and assembled in the case 11. Referring to fig. 1-2, in the present embodiment, the temperature-changing drawer 13 has a substantially flat rectangular parallelepiped shape to effectively occupy the bottom space of the refrigerating compartment 4.
Referring to fig. 4 to 16, the temperature-changing drawer 13 includes a casing 8 fixed in the refrigerating compartment 4 and a door body 9 connected to the casing 8 and capable of being pushed into or pulled out of the refrigerating compartment 4.
The housing 8 has a box-like structure defining a flat temperature-changing storage compartment 14 having a food access opening. In this embodiment, the access opening is located at the front end of the housing 8 facing the user.
As shown in fig. 12-13, the housing 8 includes a housing bottom plate 8a at the bottom thereof, and a first housing side plate 8b, a housing back plate 8c and a second housing side plate 8d, which are connected in sequence, are disposed around the edge of the housing bottom plate 8a, wherein the housing back plate 8c is located at the rear side of the housing 8; the housing 8 includes a housing top assembly disposed opposite to the housing bottom plate 8a, and the housing top assembly is fixedly connected to the first housing side plate 8b, the housing back plate 8c, and the second housing side plate 8 d.
Wherein the bottom plate 8a and the bottom wall 41b of the refrigeration liner 41 jointly define a bottom return air duct 81 communicated with the temperature-changing storage chamber 14. Wherein, one end of the bottom return air duct 81 is communicated with the temperature-changing storage chamber 14, and the other end is communicated with the refrigerated return air duct 43 through the refrigerated air outlet. In this embodiment, the communication port between the bottom return air duct 81 and the variable temperature storage chamber 14 is provided at one end close to the pick-and-place port, and the refrigerating air outlet is provided at the lower end of the rear wall 41a of the refrigerating liner 41, so that the circulation path of the air flow in the variable temperature storage chamber 14 can be extended, and the cooling efficiency can be improved.
The shell top assembly comprises a lower top cover plate 82 and an upper top cover plate 83 which are arranged in an overlapping mode and connected, wherein a top foam piece 84 attached to the lower top cover plate 82 is arranged between the lower top cover plate 82 and the upper top cover plate 83. The upper top cover plate 83 and the top foam member 84 together define a top air supply duct 85 communicating with the temperature change storage compartment 14. In this embodiment, the communication openings of the top air supply duct 85 and the temperature varying storage chamber 14 are distributed at the top of the temperature varying storage chamber 14, so as to effectively improve the cooling efficiency and the temperature uniformity.
The door body 9 is a drawer type door, and the door body 9 can be pushed toward the casing 8 to close the access opening of the temperature-variable storage chamber 14 or pulled out to open the temperature-variable storage chamber 14. The rear side of the door body 9 is connected with a tray-shaped article container 54 for placing articles. The user obtains items located in the temperature change drawer 13 or stores items in the temperature change drawer 13 by pushing or pulling the storage container 54 into or out of the temperature change storage chamber 14. The door 9 and the storage container 54 together constitute a drawer unit that can be pushed into and pulled out of the housing 8.
A gap is formed at one end of the storage container 54 close to the shell back plate 8c of the housing 4, so that the airflow entering the storage container 54 from the top of the temperature-varying storage chamber 14 enters the gap between the storage container 54 and the shell back plate 8c through the gap, and then enters the gap between the storage container 54 and the shell bottom plate 8a to flow to the bottom return air duct 81 at the front end of the shell bottom plate 8a and the communicating port of the temperature-varying storage chamber 14, so as to enter the bottom return air duct 81. The arrangement effectively prolongs the circulation path of low-temperature air flow in the variable-temperature drawer 13, improves the temperature adjusting efficiency and improves the variable-temperature control effect.
A retractable rail unit may be provided between the storage container 54 and the housing 8, so that the door 9 and the storage container 54 can be smoothly pulled out of or pushed into the housing 8.
Referring to fig. 14 to 15 in conjunction with fig. 1, an air duct cover 2 is provided inside the refrigerating inner container 41 to overlap with the rear wall 41a of the refrigerating inner container 41 (i.e., the air duct cover 2 covers the rear wall 41a of the refrigerating inner container 41). A foam piece 3 attached to the air duct cover plate 2 is arranged between the air duct cover plate 2 and the rear wall 41a of the refrigerating inner container 41, the foam piece 3 and the rear wall 41a of the refrigerating inner container 41 jointly define a main air supply duct 31, and the main air supply duct 31 is communicated with the refrigerating air supply duct 42 through a refrigerating air inlet. In this embodiment, the duct cover 2, the foam member 3, and the rear wall 41a of the refrigerating inner container 41 are engaged, and a main air supply outlet 31b communicating the main air supply duct 31 and the refrigerating chamber 4 is formed at an end of the duct cover 2 close to two opposite side walls of the refrigerating inner container 41. When the fan 1 works, air passes through the refrigerating air supply duct 42 and the main air supply duct 31 in sequence from the fan accommodating cavity 24, is guided into the refrigerating chamber 4 through the main air supply outlet 31b, then enters the refrigerating return air duct 43 and the suction air duct 22 through the refrigerating air outlet at the bottom of the refrigerating chamber 4, is cooled by the evaporator 17 in the suction air duct 22, and then returns to the fan accommodating cavity 24.
As shown in fig. 11, the top air supply duct 85 of the variable temperature drawer 13 is communicated with the main air supply duct 31 through the variable temperature drawer connecting duct 15; therefore, under the action of the fan 1, the air flows into the variable temperature drawer 13 sequentially through the main air supply duct 31, the variable temperature drawer connecting duct 15 and the top air supply duct 85, finally flows out of the variable temperature drawer 13, enters the bottom return air duct 81, then enters the refrigerated return air duct 43 and the suction air duct 22 through the refrigerated air outlet at the bottom of the refrigerating chamber 4, and the directional temperature change of the variable temperature drawer 13 is realized. In this embodiment, the temperature-changing drawer connecting air duct 15 is curved, and the end of the temperature-changing drawer connecting air duct 15 connected to the lower air duct cover plate 5 is lower than the end of the temperature-changing drawer connecting air duct 15 communicated to the top air supply air duct 85, so as to change the air supply angle, further change the direction of the air flow entering the top air supply air duct 85, and effectively reduce the wind resistance. The temperature change drawer connecting air duct 15 can be arranged in a linear type and is perpendicular to the lower air duct cover plate 5.
The duct cover 2 and the housing back panel 8c of the housing 8 together define a rear return duct 18, and the rear return duct 18 communicates the refrigerating compartment 4 with the refrigerated return duct 43. Namely, the bottom return air duct 81 and the rear return air duct 18 are both communicated with the refrigerated return air duct 43 through a refrigerated air outlet at the bottom of the refrigerating chamber 4. That is, the bottom return air duct 81 and the rear return air duct 18 are both communicated with the suction air duct 22 through the refrigerating return air duct 43; the air duct cover plate 2 and the shell back plate 8c of the shell 8 jointly define the back return air duct 18, so that air flow in the refrigerating chamber 4 flows out from the back side of the variable temperature drawer 13, the phenomenon that the rising of hot air passing through the refrigerating chamber 4 is reduced to reduce the cooling effect is effectively avoided, and the cooling efficiency is improved. As shown in fig. 9, the bottom of the refrigerating chamber 4 is provided with a refrigerating air outlet; as shown in fig. 16, two refrigerating air outlets may be disposed at the bottom of the refrigerating chamber 4, and the two refrigerating air outlets are respectively provided with a sub-refrigerating return air duct 44, the two sub-refrigerating return air ducts 44 are further integrated into a main refrigerating return air duct 45, and the main refrigerating return air duct 45 is further communicated with the suction air duct. It should be noted that the present invention is not limited to the illustrated embodiment, and may be appropriately arranged according to actual settings.
As shown in fig. 5 and 10, when refrigerating the refrigerating chamber 4, the fan 1 drives air to flow, cold air is guided into the refrigerating air supply duct 42 communicated with the fan accommodating chamber 24 and is sent into the main air supply duct 31 through the refrigerating air inlet, air flow passing through the main air supply duct 31 is sent into the refrigerating chamber 4 through the main air supply outlet 31b, air in the refrigerating chamber 4 enters the refrigerating return air duct 43 through the rear return air duct 18, enters the suction air duct 22 through the refrigerating return air duct 43 and is cooled through the evaporator 17 in the suction air duct 22, the cooled air is sent to the refrigerating chamber 4 again through the suction inlet 21a by the fan 1, and the above cycle is repeated to cool the refrigerating chamber 4.
As shown in fig. 6 and 11, when the temperature change drawer 13 is cooled, the fan 1 drives air to flow, the cold air is introduced into the refrigerating air supply duct 42 communicated with the fan accommodating cavity 24 and is sent into the main air supply duct 31 through a refrigerating air inlet, the air flow passing through the main air supply duct 31 is introduced into the temperature change drawer 13 through the temperature change drawer connecting duct 15 and the top air supply duct 85 in sequence, the air flow flows in the temperature change storage chamber 14 of the temperature change drawer 13 and finally enters the bottom return air duct 81, enters the refrigerating return air duct 43 through the bottom return air duct 81, enters the suction air duct 22 through the refrigerating return air duct 43, is cooled by the evaporator 17 in the suction air duct 22, the cooled air is sent to the temperature change drawer 13 by the fan 1 through the suction inlet 21a again, and the above circulation is repeated to cool the temperature change drawer 13.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims (8)

1. The refrigerator is characterized in that: it includes:
a freezing chamber surrounded by a freezing inner container;
a fan mounting plate fixedly connected to a rear wall of the freezing inner container; the fan mounting plate is provided with a fan accommodating cavity which is used for accommodating a fan and communicated with the freezing chamber; the fan mounting plate and the rear wall of the freezing inner container jointly define a suction air channel, and the fan accommodating cavity, the freezing chamber and the suction air channel are sequentially connected end to end and are communicated with one another; an evaporator is arranged in the suction air duct;
the refrigerating chamber is surrounded by the refrigerating liner;
the air duct cover plate is overlapped with the rear wall of the refrigerating inner container; the air duct cover plate and the rear wall of the refrigerating liner jointly define a main air supply air duct communicated with the refrigerating chamber; the cold storage air supply duct is communicated with the fan accommodating cavity and the main air supply duct;
the refrigerating return air duct is communicated with the refrigerating chamber and the suction air duct;
a variable temperature drawer installed in the refrigerating chamber and having a variable temperature storage chamber formed therein; the rear end part of the temperature-changing drawer and the air duct cover plate jointly define a rear return air duct communicated with the refrigerating chamber and the refrigerating return air duct;
the top of the variable temperature drawer is provided with a top air supply duct which is communicated with the main air supply duct and the variable temperature storage chamber;
the bottom of the variable temperature drawer and the bottom wall of the refrigerating liner jointly define a bottom return air duct which is communicated with the variable temperature storage chamber and the refrigerating return air duct;
on one hand, the fan can enable air to sequentially pass through the fan accommodating cavity, the refrigerating air supply duct, the main air supply duct, the refrigerating chamber, the back air return duct, the refrigerating air return duct, the suction duct and the evaporator positioned in the suction duct and then return to the fan accommodating cavity; on the other hand, the air can sequentially pass through the fan accommodating cavity, the refrigerating air supply duct, the main air supply duct, the top air supply duct, the variable temperature storage chamber, the bottom air return duct, the refrigerating air return duct, the suction duct and the evaporator positioned in the suction duct and then return to the fan accommodating cavity;
the temperature-changing drawer comprises a shell fixed in the refrigerating chamber and a door body which is connected with the shell and can be pushed into or pulled out of the refrigerating chamber; the shell comprises a shell bottom plate positioned at the bottom of the shell and a lower top cover plate arranged opposite to the shell bottom plate; a first shell side plate, a shell back plate and a second shell side plate which are sequentially connected are arranged at the position surrounding the edge of the shell bottom plate; wherein the shell back plate is positioned at the rear side of the shell; the air duct cover plate and the shell back plate of the shell jointly define the rear return air duct;
the rear side of the door body is connected with a tray-shaped article container for placing articles; a notch is formed in one end, close to the shell back plate of the shell, of the storage container;
the air current that gets into in putting the thing container by alternating temperature storeroom top gets into the clearance of putting between thing container and the shell backplate through the breach, then gets into the clearance between thing container and the shell bottom plate and flows to the intercommunication mouth that lies in end return air wind channel and alternating temperature storeroom of shell bottom plate front end to get into end return air wind channel.
2. The refrigerator according to claim 1, wherein: the front side of fan mounting panel is equipped with the fan shell, the fan shell with the cooperation of fan mounting panel is injectd fan holding chamber.
3. The refrigerator according to claim 2, wherein: the fan shell is provided with a freezing air inlet which is communicated with the freezing chamber and the fan accommodating chamber;
the fan mounting plate is provided with a suction inlet which is communicated with the suction air channel and the fan accommodating cavity;
the lower end of the fan mounting plate and the rear wall of the freezing inner container jointly define a freezing air outlet which is communicated with the freezing chamber and the suction air channel.
4. The refrigerator according to any one of claims 1 to 3, wherein: and main air supply outlets for communicating the main air supply duct with the refrigerating chamber are formed at the end parts of the air duct cover plate, which are close to the two opposite side walls of the refrigerating liner.
5. The refrigerator of claim 4, wherein: the main air supply duct is communicated with the top air supply duct through a variable temperature drawer connecting duct.
6. The refrigerator according to claim 5, wherein:
an upper top cover plate is arranged on the upper side of the lower top cover plate, a top foam piece attached to the lower top cover plate is arranged between the lower top cover plate and the upper top cover plate, and a top air supply duct communicated with the variable-temperature storage chamber is defined by the upper top cover plate and the top foam piece together.
7. The refrigerator according to any one of claims 1 to 3, wherein: the refrigeration return air duct comprises a main refrigeration return air duct communicated with the suction air duct and at least one sub refrigeration return air duct, and the sub refrigeration return air ducts are communicated with the main refrigeration return air duct.
8. The refrigerator according to any one of claims 1 to 3, wherein: the refrigerator comprises a temperature changing chamber between the refrigerating chamber and the freezing chamber; the refrigerator is provided with a variable-temperature air supply duct and a variable-temperature air return duct; the variable-temperature air supply duct is communicated with the fan accommodating cavity and the variable-temperature chamber; the variable-temperature return air duct is communicated with the variable-temperature chamber and the suction air duct.
CN202010250452.0A 2020-04-01 2020-04-01 Refrigerator with a door Active CN113494809B (en)

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Publication number Priority date Publication date Assignee Title
CN113531987B (en) * 2020-04-17 2023-02-03 海信冰箱有限公司 Refrigerator with a door
CN116263282A (en) * 2021-12-15 2023-06-16 青岛海尔电冰箱有限公司 Refrigerating equipment with magnetic field fresh-keeping device

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
JPH10318650A (en) * 1997-05-16 1998-12-04 Matsushita Refrig Co Ltd Refrigerator
CN103591748A (en) * 2013-11-15 2014-02-19 合肥美的电冰箱有限公司 Refrigerator
CN104567195B (en) * 2014-12-31 2017-04-19 合肥华凌股份有限公司 Refrigerator
CN204923643U (en) * 2015-07-31 2015-12-30 合肥美的电冰箱有限公司 Air -cooled refrigerator
JP2017116121A (en) * 2015-12-21 2017-06-29 東芝ライフスタイル株式会社 refrigerator
CN209801893U (en) * 2019-01-31 2019-12-17 青岛海尔生物医疗股份有限公司 Multi-drawer refrigerated cabinet
CN109869968B (en) * 2019-03-06 2023-12-08 澳柯玛股份有限公司 Refrigerator with air duct structure

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Address after: 266736 No. 8 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province

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